Along-beam velocity fluctuation: Difference between revisions
From Atomix
m Categorization |
Yuengdjern (talk | contribs) No edit summary |
||
| (3 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
Methods to compute the along-beam velocity fluctuation: | Methods to compute the along-beam velocity fluctuation, <math> b^{\prime}</math> : | ||
# If using burst sampling, calculations are done over the length of the burst or some sub-period over which the turbulent flow statistics can assumed to be stationary | # If using [[burst sampling]], calculations are done over the length of the burst or some sub-period over which the turbulent flow statistics can assumed to be stationary | ||
# If using continuous sampling, calculations are done over segments with a duration over which the turbulent flow statistics can assumed to be stationary | # If using continuous sampling, calculations are done over segments with a duration over which the turbulent flow statistics can assumed to be stationary | ||
# For each data segment consisting of N profiles, the turbulent fluctuations are calculated separately for each beam and bin by either: | # For each data segment consisting of N profiles (i.e. <math> t_s </math>), the turbulent fluctuations are calculated separately for each beam and bin by either: | ||
#* ''The mean over the data segment'' | #* ''The mean over the data segment'' | ||
#* ''A linear detrend of the segment'' | #* ''A linear detrend of the segment'' | ||
Latest revision as of 15:11, 27 May 2022
Methods to compute the along-beam velocity fluctuation, [math]\displaystyle{ b^{\prime} }[/math] :
- If using burst sampling, calculations are done over the length of the burst or some sub-period over which the turbulent flow statistics can assumed to be stationary
- If using continuous sampling, calculations are done over segments with a duration over which the turbulent flow statistics can assumed to be stationary
- For each data segment consisting of N profiles (i.e. [math]\displaystyle{ t_s }[/math]), the turbulent fluctuations are calculated separately for each beam and bin by either:
- The mean over the data segment
- A linear detrend of the segment
- A low pass filtered signal
